Gasolene-proof hose.



VJ. FENTRESS.

GASOLENE PROOF HOSE.

APPLlcAnoN HLED FEB. 2o. m5. RENEWED DEc.26.|911.

Patented lFehlZ, 1918 diff torily handled. It also consists in bnrrnn arianne hiernaar orribili.,

JAMES IEENTRESS, GF CHICGO, ILEINOIS.

GASOLENE-PROOF HOSE.

Specification of Letters Patent.

Patented Feb. I2, 1918.

pplication led February 20, 1915, Serial No. 9,536. Renewed December 26, 191'?. Serial No. 208,981.

To all 'whom t may concern.'

Be it known that I, JAMES FnNTREss, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain4 new and useful Improvement in Gasolene- Proof Hose, of which the following is a specification.

rIhis invention is a tubing capable of controlling and permitting the How of gasolene without the escape through the walls of the tubing, either in the form of vapor or otherwise, of any portion of the gasolene. So far as I have 'been able to learn, by an extended professional experience involving many experiments, the device of this invention is the first tubing to successfully and properly handle gasolene.

As is well known, gasolene is highly inammablc and even vapor in a room renders the danger of iire in that room very great. Previous devices have .permitted gasolene vapor to work through the wall of the tube and permeate the room with possible disastrous results. 'Ihe object sought to be accomplished and accomplished by this invention is to do away with all possibility of any happening of this kind. A further object is to provide a tubing which is so little affected by the gasolene passed through it that it remains one hundred per cent. eiiicient for an indefinite time.

rIhe invention consists in a device which carries out all of the above objects, which can be easily and cheaply made andsatisfacthe features and details hereafter set forth.V

.In the drawings, which show the most satisfactory form of tubing embodying this invention:

Figure 1 is a side view of the tubing, the diiierent layers'being broken away in order to clearly show the construction.

Fig. 2 is a cross-sectional view of Fig. 1.

As in all modern tubing, a metallic supporting frame 11 is provided, preferably of steel because it is cheapest. Over this steel frame 11 is placed a paper covering 12 which is in turn covered by a cloth braid 13.- Layers` 12 and 13, just referred to, serve the function of supporting a layer of gelatin 14 and separating it "from the metal tube 11. In the prior art, attempts have been made to apply a coating of gelatin material directly to the metal frame 1l but with disastrous a small quantity of its results because there is a chemical action vbetween the iron or steel of the tube 11 and tervening of cloth braid l5 Work much better than an attempt to provide an eXtra thick layer of gelatin without the intervening reinforcing layer of cloth braid 15. Over the gelatin layer 16 is placed another layer of relatively thin cloth braid 17 and the whole is covered by a thick water-proof.

woven cotton jacket 18. rIhis cotton jacket is not rubber coated for the reason that gelatin deteriorates so that it is not gasoleneproof when heated to the 125 degrees, or upward, required for the of rubber. Owing to the entire absence of rubber in the device and the fact that gelatin is soluble in water, though insoluble in gasolene, this tubing cannot be used as a water-carrying hose, for the water works through between the coils of the metal sup-l port 11 and coverings 12 and 13 to attack the gelatin layer 14, but the device is a perfeet gasolene carrier coming up to all the speciiications heretofore set forth which can possibly be required of it.

Ihe outer braided covering 18 is made of such heavy closely woven treated thread so that it is for all practical purposes waterproof and, therefore, keeps the water which may accidentally come in contact with the outside of the hose from permeating the hose and thus attacking the layers of gelatin. It is also made suiiciently strong and stiff to protect the hose from either sharp j blows accidentally applied to its outside or proper vulcanization keepin the prodct permanently soft an pliable; in other words, preventing' its drying out and cracking.

Having thus described my invention, what I claim as new and desire to secure by Letl ters Patent, isz- A hose for carrying gasolene consisting of a flexible metallic supporting frame, a layer of protecting material una'ected by the metal of the frame and, insoluble in gasolene, a layer of gelatin material over the protecting layer, entirely excluded from contact 'th 'the frame by said protecting layer,

mams? and a second protectin layer of woven 

